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1 ------------------------------------------------------------------------------
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2 -- --
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3 -- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS --
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4 -- --
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5 -- S Y S T E M . O S _ I N T E R F A C E --
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6 -- --
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7 -- S p e c --
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8 -- --
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131
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9 -- Copyright (C) 1995-2018, Free Software Foundation, Inc. --
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111
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10 -- --
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11 -- GNAT is free software; you can redistribute it and/or modify it under --
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12 -- terms of the GNU General Public License as published by the Free Soft- --
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13 -- ware Foundation; either version 3, or (at your option) any later ver- --
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14 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
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15 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
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16 -- or FITNESS FOR A PARTICULAR PURPOSE. --
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17 -- --
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18 -- As a special exception under Section 7 of GPL version 3, you are granted --
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19 -- additional permissions described in the GCC Runtime Library Exception, --
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20 -- version 3.1, as published by the Free Software Foundation. --
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21 -- --
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22 -- You should have received a copy of the GNU General Public License and --
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23 -- a copy of the GCC Runtime Library Exception along with this program; --
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24 -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
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25 -- <http://www.gnu.org/licenses/>. --
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26 -- --
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27 -- GNARL was developed by the GNARL team at Florida State University. --
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28 -- Extensive contributions were provided by Ada Core Technologies, Inc. --
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29 -- --
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30 ------------------------------------------------------------------------------
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31
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32 -- This is an Android version of this package which is based on the
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33 -- GNU/Linux version
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34
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35 -- This package encapsulates all direct interfaces to OS services
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36 -- that are needed by the tasking run-time (libgnarl).
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37
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38 -- PLEASE DO NOT add any with-clauses to this package or remove the pragma
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39 -- Preelaborate. This package is designed to be a bottom-level (leaf) package.
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40
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41 with Ada.Unchecked_Conversion;
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42 with Interfaces.C;
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43 with System.Linux;
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44 with System.OS_Constants;
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45
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46 package System.OS_Interface is
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47 pragma Preelaborate;
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48
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49 subtype int is Interfaces.C.int;
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50 subtype char is Interfaces.C.char;
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51 subtype short is Interfaces.C.short;
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52 subtype long is Interfaces.C.long;
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53 subtype unsigned is Interfaces.C.unsigned;
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54 subtype unsigned_short is Interfaces.C.unsigned_short;
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55 subtype unsigned_long is Interfaces.C.unsigned_long;
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56 subtype unsigned_char is Interfaces.C.unsigned_char;
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57 subtype plain_char is Interfaces.C.plain_char;
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58 subtype size_t is Interfaces.C.size_t;
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59
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60 -----------
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61 -- Errno --
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62 -----------
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63
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64 function errno return int;
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65 pragma Import (C, errno, "__get_errno");
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66
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67 EAGAIN : constant := System.Linux.EAGAIN;
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68 EINTR : constant := System.Linux.EINTR;
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69 EINVAL : constant := System.Linux.EINVAL;
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70 ENOMEM : constant := System.Linux.ENOMEM;
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71 EPERM : constant := System.Linux.EPERM;
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72 ETIMEDOUT : constant := System.Linux.ETIMEDOUT;
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73
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74 -------------
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75 -- Signals --
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76 -------------
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77
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78 Max_Interrupt : constant := 31;
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79 type Signal is new int range 0 .. Max_Interrupt;
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80 for Signal'Size use int'Size;
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81
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82 SIGHUP : constant := System.Linux.SIGHUP;
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83 SIGINT : constant := System.Linux.SIGINT;
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84 SIGQUIT : constant := System.Linux.SIGQUIT;
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85 SIGILL : constant := System.Linux.SIGILL;
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86 SIGTRAP : constant := System.Linux.SIGTRAP;
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87 SIGIOT : constant := System.Linux.SIGIOT;
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88 SIGABRT : constant := System.Linux.SIGABRT;
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89 SIGFPE : constant := System.Linux.SIGFPE;
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90 SIGKILL : constant := System.Linux.SIGKILL;
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91 SIGBUS : constant := System.Linux.SIGBUS;
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92 SIGSEGV : constant := System.Linux.SIGSEGV;
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93 SIGPIPE : constant := System.Linux.SIGPIPE;
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94 SIGALRM : constant := System.Linux.SIGALRM;
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95 SIGTERM : constant := System.Linux.SIGTERM;
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96 SIGUSR1 : constant := System.Linux.SIGUSR1;
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97 SIGUSR2 : constant := System.Linux.SIGUSR2;
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98 SIGCLD : constant := System.Linux.SIGCLD;
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99 SIGCHLD : constant := System.Linux.SIGCHLD;
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100 SIGPWR : constant := System.Linux.SIGPWR;
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101 SIGWINCH : constant := System.Linux.SIGWINCH;
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102 SIGURG : constant := System.Linux.SIGURG;
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103 SIGPOLL : constant := System.Linux.SIGPOLL;
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104 SIGIO : constant := System.Linux.SIGIO;
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105 SIGLOST : constant := System.Linux.SIGLOST;
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106 SIGSTOP : constant := System.Linux.SIGSTOP;
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107 SIGTSTP : constant := System.Linux.SIGTSTP;
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108 SIGCONT : constant := System.Linux.SIGCONT;
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109 SIGTTIN : constant := System.Linux.SIGTTIN;
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110 SIGTTOU : constant := System.Linux.SIGTTOU;
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111 SIGVTALRM : constant := System.Linux.SIGVTALRM;
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112 SIGPROF : constant := System.Linux.SIGPROF;
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113 SIGXCPU : constant := System.Linux.SIGXCPU;
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114 SIGXFSZ : constant := System.Linux.SIGXFSZ;
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115 SIGUNUSED : constant := System.Linux.SIGUNUSED;
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116 SIGSTKFLT : constant := System.Linux.SIGSTKFLT;
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117
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118 SIGADAABORT : constant := SIGABRT;
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119 -- Change this to use another signal for task abort. SIGTERM might be a
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120 -- good one.
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121
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122 type Signal_Set is array (Natural range <>) of Signal;
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123
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124 Unmasked : constant Signal_Set := (
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125 SIGTRAP,
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126 -- To enable debugging on multithreaded applications, mark SIGTRAP to
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127 -- be kept unmasked.
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128
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129 SIGBUS,
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130
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131 SIGTTIN, SIGTTOU, SIGTSTP,
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132 -- Keep these three signals unmasked so that background processes and IO
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133 -- behaves as normal "C" applications
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134
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135 SIGPROF,
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136 -- To avoid confusing the profiler
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137
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138 SIGKILL, SIGSTOP);
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139 -- These two signals actually can't be masked (POSIX won't allow it)
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140
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141 Reserved : constant Signal_Set := (SIGVTALRM, SIGUNUSED);
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142 -- Not clear why these two signals are reserved. Perhaps they are not
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143 -- supported by this version of GNU/Linux ???
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144
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145 type sigset_t is private;
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146
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147 function sigaddset (set : access sigset_t; sig : Signal) return int;
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148 pragma Import (C, sigaddset, "_sigaddset");
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149
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150 function sigdelset (set : access sigset_t; sig : Signal) return int;
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151 pragma Import (C, sigdelset, "_sigdelset");
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152
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153 function sigfillset (set : access sigset_t) return int;
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154 pragma Import (C, sigfillset, "_sigfillset");
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155
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156 function sigismember (set : access sigset_t; sig : Signal) return int;
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157 pragma Import (C, sigismember, "_sigismember");
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158
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159 function sigemptyset (set : access sigset_t) return int;
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160 pragma Import (C, sigemptyset, "_sigemptyset");
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161
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162 type union_type_3 is new String (1 .. 116);
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163 type siginfo_t is record
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164 si_signo : int;
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165 si_code : int;
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166 si_errno : int;
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167 X_data : union_type_3;
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168 end record;
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169 pragma Convention (C, siginfo_t);
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170
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171 type struct_sigaction is record
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172 sa_handler : System.Address;
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173 sa_mask : sigset_t;
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174 sa_flags : Interfaces.C.unsigned_long;
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175 sa_restorer : System.Address;
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176 end record;
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177 pragma Convention (C, struct_sigaction);
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178
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179 type struct_sigaction_ptr is access all struct_sigaction;
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180
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181 SA_SIGINFO : constant := System.Linux.SA_SIGINFO;
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182 SA_ONSTACK : constant := System.Linux.SA_ONSTACK;
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183 SA_NODEFER : constant := System.Linux.SA_NODEFER;
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184 SA_RESTART : constant := System.Linux.SA_RESTART;
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185
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186 SIG_BLOCK : constant := 0;
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187 SIG_UNBLOCK : constant := 1;
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188 SIG_SETMASK : constant := 2;
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189
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190 SIG_DFL : constant := 0;
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191 SIG_IGN : constant := 1;
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192
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193 function sigaction
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194 (sig : Signal;
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195 act : struct_sigaction_ptr;
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196 oact : struct_sigaction_ptr) return int;
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197 pragma Import (C, sigaction, "sigaction");
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198
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199 ----------
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200 -- Time --
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201 ----------
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202
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203 Time_Slice_Supported : constant Boolean := True;
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204 -- Indicates whether time slicing is supported
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205
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206 type timespec is private;
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207
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208 type clockid_t is new int;
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209
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210 function clock_gettime
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211 (clock_id : clockid_t; tp : access timespec) return int;
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212 pragma Import (C, clock_gettime, "clock_gettime");
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213
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214 function clock_getres
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215 (clock_id : clockid_t;
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216 res : access timespec) return int;
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217 pragma Import (C, clock_getres, "clock_getres");
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218
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219 function To_Duration (TS : timespec) return Duration;
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220 pragma Inline (To_Duration);
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221
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222 function To_Timespec (D : Duration) return timespec;
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223 pragma Inline (To_Timespec);
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224
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225 function sysconf (name : int) return long;
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226 pragma Import (C, sysconf);
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227
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228 SC_CLK_TCK : constant := 2;
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229 SC_NPROCESSORS_ONLN : constant := 84;
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230
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231 -------------------------
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232 -- Priority Scheduling --
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233 -------------------------
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234
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235 SCHED_OTHER : constant := 0;
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236 SCHED_FIFO : constant := 1;
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237 SCHED_RR : constant := 2;
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238
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239 function To_Target_Priority
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240 (Prio : System.Any_Priority)
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241 return Interfaces.C.int is (Interfaces.C.int (Prio));
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242 -- Maps System.Any_Priority to a POSIX priority
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243
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244 -------------
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245 -- Process --
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246 -------------
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247
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248 type pid_t is private;
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249
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250 function kill (pid : pid_t; sig : Signal) return int;
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251 pragma Import (C, kill, "kill");
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252
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253 function getpid return pid_t;
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254 pragma Import (C, getpid, "getpid");
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255
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256 -------------
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257 -- Threads --
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258 -------------
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259
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260 type Thread_Body is access
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261 function (arg : System.Address) return System.Address;
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262 pragma Convention (C, Thread_Body);
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263
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264 function Thread_Body_Access is new
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265 Ada.Unchecked_Conversion (System.Address, Thread_Body);
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266
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267 type pthread_t is new unsigned_long;
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268 subtype Thread_Id is pthread_t;
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269
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270 function To_pthread_t is
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271 new Ada.Unchecked_Conversion (unsigned_long, pthread_t);
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272
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273 type pthread_mutex_t is limited private;
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274 type pthread_cond_t is limited private;
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275 type pthread_attr_t is limited private;
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276 type pthread_mutexattr_t is limited private;
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277 type pthread_condattr_t is limited private;
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278 type pthread_key_t is private;
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279
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280 PTHREAD_CREATE_DETACHED : constant := 1;
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281
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282 PTHREAD_SCOPE_PROCESS : constant := 1;
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283 PTHREAD_SCOPE_SYSTEM : constant := 0;
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284
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285 -- Read/Write lock not supported on Android.
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286
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287 subtype pthread_rwlock_t is pthread_mutex_t;
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288 subtype pthread_rwlockattr_t is pthread_mutexattr_t;
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289
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290 -----------
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291 -- Stack --
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292 -----------
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293
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294 type stack_t is record
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295 ss_sp : System.Address;
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296 ss_flags : int;
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297 ss_size : size_t;
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298 end record;
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299 pragma Convention (C, stack_t);
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300
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301 function sigaltstack
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302 (ss : not null access stack_t;
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303 oss : access stack_t) return int;
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304 pragma Import (C, sigaltstack, "sigaltstack");
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305
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306 Alternate_Stack : aliased System.Address;
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307 pragma Import (C, Alternate_Stack, "__gnat_alternate_stack");
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308 -- The alternate signal stack for stack overflows
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309
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310 Alternate_Stack_Size : constant := 16 * 1024;
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311 -- This must be in keeping with init.c:__gnat_alternate_stack
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312
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313 Stack_Base_Available : constant Boolean := False;
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314 -- Indicates whether the stack base is available on this target
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315
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131
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316 function Get_Stack_Base (ignored_thread : pthread_t)
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111
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317 return Address is (Null_Address);
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318 -- This is a dummy procedure to share some GNULLI files
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319
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320 function Get_Page_Size return int;
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321 pragma Import (C, Get_Page_Size, "_getpagesize");
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322 -- Returns the size of a page
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323
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324 PROT_NONE : constant := 0;
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325 PROT_READ : constant := 1;
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326 PROT_WRITE : constant := 2;
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327 PROT_EXEC : constant := 4;
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328 PROT_ALL : constant := PROT_READ + PROT_WRITE + PROT_EXEC;
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329 PROT_ON : constant := PROT_READ;
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330 PROT_OFF : constant := PROT_ALL;
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331
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332 function mprotect (addr : Address; len : size_t; prot : int) return int;
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333 pragma Import (C, mprotect);
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334
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335 ---------------------------------------
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336 -- Nonstandard Thread Initialization --
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337 ---------------------------------------
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338
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339 procedure pthread_init is null;
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340 -- This is a dummy procedure to share some GNULLI files
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341
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342 -------------------------
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343 -- POSIX.1c Section 3 --
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344 -------------------------
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345
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346 function sigwait (set : access sigset_t; sig : access Signal) return int;
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347 pragma Import (C, sigwait, "sigwait");
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348
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349 function pthread_kill (thread : pthread_t; sig : Signal) return int;
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350 pragma Import (C, pthread_kill, "pthread_kill");
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351
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352 function pthread_sigmask
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353 (how : int;
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354 set : access sigset_t;
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355 oset : access sigset_t) return int;
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356 pragma Import (C, pthread_sigmask, "sigprocmask");
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357 -- pthread_sigmask maybe be broken due to mismatch between sigset_t and
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358 -- kernel_sigset_t, substitute sigprocmask temporarily. ???
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359 -- pragma Import (C, pthread_sigmask, "pthread_sigmask");
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360
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361 --------------------------
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362 -- POSIX.1c Section 11 --
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363 --------------------------
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364
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365 function pthread_mutexattr_init
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366 (attr : access pthread_mutexattr_t) return int;
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367 pragma Import (C, pthread_mutexattr_init, "pthread_mutexattr_init");
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368
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369 function pthread_mutexattr_destroy
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370 (attr : access pthread_mutexattr_t) return int;
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371 pragma Import (C, pthread_mutexattr_destroy, "pthread_mutexattr_destroy");
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372
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373 function pthread_mutex_init
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374 (mutex : access pthread_mutex_t;
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375 attr : access pthread_mutexattr_t) return int;
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376 pragma Import (C, pthread_mutex_init, "pthread_mutex_init");
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377
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378 function pthread_mutex_destroy (mutex : access pthread_mutex_t) return int;
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379 pragma Import (C, pthread_mutex_destroy, "pthread_mutex_destroy");
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380
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381 function pthread_mutex_lock (mutex : access pthread_mutex_t) return int;
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382 pragma Import (C, pthread_mutex_lock, "pthread_mutex_lock");
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383
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384 function pthread_mutex_unlock (mutex : access pthread_mutex_t) return int;
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385 pragma Import (C, pthread_mutex_unlock, "pthread_mutex_unlock");
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386
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387 function pthread_condattr_init
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388 (attr : access pthread_condattr_t) return int;
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389 pragma Import (C, pthread_condattr_init, "pthread_condattr_init");
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390
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391 function pthread_condattr_destroy
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392 (attr : access pthread_condattr_t) return int;
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393 pragma Import (C, pthread_condattr_destroy, "pthread_condattr_destroy");
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394
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395 function pthread_cond_init
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396 (cond : access pthread_cond_t;
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397 attr : access pthread_condattr_t) return int;
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398 pragma Import (C, pthread_cond_init, "pthread_cond_init");
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399
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400 function pthread_cond_destroy (cond : access pthread_cond_t) return int;
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401 pragma Import (C, pthread_cond_destroy, "pthread_cond_destroy");
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402
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403 function pthread_cond_signal (cond : access pthread_cond_t) return int;
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404 pragma Import (C, pthread_cond_signal, "pthread_cond_signal");
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405
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406 function pthread_cond_wait
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407 (cond : access pthread_cond_t;
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408 mutex : access pthread_mutex_t) return int;
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409 pragma Import (C, pthread_cond_wait, "pthread_cond_wait");
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410
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411 function pthread_cond_timedwait
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412 (cond : access pthread_cond_t;
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413 mutex : access pthread_mutex_t;
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414 abstime : access timespec) return int;
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415 pragma Import (C, pthread_cond_timedwait, "pthread_cond_timedwait");
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416
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417 --------------------------
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418 -- POSIX.1c Section 13 --
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419 --------------------------
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420
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421 PTHREAD_PRIO_PROTECT : constant := 0;
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422 PTHREAD_PRIO_INHERIT : constant := 1;
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423
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424 function pthread_mutexattr_setprotocol
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131
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425 (ignored_attr : access pthread_mutexattr_t;
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426 ignored_protocol : int) return int is (0);
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111
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427
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428 function pthread_mutexattr_setprioceiling
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131
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429 (ignored_attr : access pthread_mutexattr_t;
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430 ignored_prioceiling : int) return int is (0);
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111
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431
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432 type struct_sched_param is record
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433 sched_priority : int; -- scheduling priority
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434 end record;
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435 pragma Convention (C, struct_sched_param);
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436
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437 function pthread_setschedparam
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438 (thread : pthread_t;
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439 policy : int;
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440 param : access struct_sched_param) return int;
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441 pragma Import (C, pthread_setschedparam, "pthread_setschedparam");
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442
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443 function pthread_attr_setscope
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444 (attr : access pthread_attr_t;
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445 scope : int) return int;
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446 pragma Import (C, pthread_attr_setscope, "pthread_attr_setscope");
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447
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448 function pthread_attr_setschedpolicy
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449 (attr : access pthread_attr_t;
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450 policy : int) return int;
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451 pragma Import
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452 (C, pthread_attr_setschedpolicy, "pthread_attr_setschedpolicy");
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453
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454 function sched_yield return int;
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455 pragma Import (C, sched_yield, "sched_yield");
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456
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457 ---------------------------
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|
458 -- P1003.1c - Section 16 --
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459 ---------------------------
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460
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461 function pthread_attr_init
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462 (attributes : access pthread_attr_t) return int;
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463 pragma Import (C, pthread_attr_init, "pthread_attr_init");
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464
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465 function pthread_attr_destroy
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466 (attributes : access pthread_attr_t) return int;
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|
467 pragma Import (C, pthread_attr_destroy, "pthread_attr_destroy");
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468
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469 function pthread_attr_setdetachstate
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470 (attr : access pthread_attr_t;
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471 detachstate : int) return int;
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472 pragma Import
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473 (C, pthread_attr_setdetachstate, "pthread_attr_setdetachstate");
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474
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475 function pthread_attr_setstacksize
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476 (attr : access pthread_attr_t;
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477 stacksize : size_t) return int;
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|
478 pragma Import (C, pthread_attr_setstacksize, "pthread_attr_setstacksize");
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479
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480 function pthread_create
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481 (thread : access pthread_t;
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482 attributes : access pthread_attr_t;
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483 start_routine : Thread_Body;
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484 arg : System.Address) return int;
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485 pragma Import (C, pthread_create, "pthread_create");
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486
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487 procedure pthread_exit (status : System.Address);
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488 pragma Import (C, pthread_exit, "pthread_exit");
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489
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490 function pthread_self return pthread_t;
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491 pragma Import (C, pthread_self, "pthread_self");
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492
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493 function lwp_self return System.Address;
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494 pragma Import (C, lwp_self, "__gnat_lwp_self");
|
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|
495
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496 --------------------------
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|
497 -- POSIX.1c Section 17 --
|
|
|
498 --------------------------
|
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499
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500 function pthread_setspecific
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|
501 (key : pthread_key_t;
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502 value : System.Address) return int;
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503 pragma Import (C, pthread_setspecific, "pthread_setspecific");
|
|
|
504
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505 function pthread_getspecific (key : pthread_key_t) return System.Address;
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506 pragma Import (C, pthread_getspecific, "pthread_getspecific");
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|
507
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508 type destructor_pointer is access procedure (arg : System.Address);
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|
509 pragma Convention (C, destructor_pointer);
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510
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511 function pthread_key_create
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|
512 (key : access pthread_key_t;
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|
|
513 destructor : destructor_pointer) return int;
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514 pragma Import (C, pthread_key_create, "pthread_key_create");
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|
|
515
|
|
|
516 CPU_SETSIZE : constant := 1_024;
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|
517 -- Size of the cpu_set_t mask on most linux systems (SUSE 11 uses 4_096).
|
|
|
518 -- This is kept for backward compatibility (System.Task_Info uses it), but
|
|
|
519 -- the run-time library does no longer rely on static masks, using
|
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|
520 -- dynamically allocated masks instead.
|
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|
521
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|
|
522 type bit_field is array (1 .. CPU_SETSIZE) of Boolean;
|
|
|
523 for bit_field'Size use CPU_SETSIZE;
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|
524 pragma Pack (bit_field);
|
|
|
525 pragma Convention (C, bit_field);
|
|
|
526
|
|
|
527 type cpu_set_t is record
|
|
|
528 bits : bit_field;
|
|
|
529 end record;
|
|
|
530 pragma Convention (C, cpu_set_t);
|
|
|
531
|
|
|
532 type cpu_set_t_ptr is access all cpu_set_t;
|
|
|
533 -- In the run-time library we use this pointer because the size of type
|
|
|
534 -- cpu_set_t varies depending on the glibc version. Hence, objects of type
|
|
|
535 -- cpu_set_t are allocated dynamically using the number of processors
|
|
|
536 -- available in the target machine (value obtained at execution time).
|
|
|
537
|
|
|
538 function CPU_ALLOC (count : size_t) return cpu_set_t_ptr;
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|
|
539 pragma Import (C, CPU_ALLOC, "__gnat_cpu_alloc");
|
|
|
540 -- Wrapper around the CPU_ALLOC C macro
|
|
|
541
|
|
|
542 function CPU_ALLOC_SIZE (count : size_t) return size_t;
|
|
|
543 pragma Import (C, CPU_ALLOC_SIZE, "__gnat_cpu_alloc_size");
|
|
|
544 -- Wrapper around the CPU_ALLOC_SIZE C macro
|
|
|
545
|
|
|
546 procedure CPU_FREE (cpuset : cpu_set_t_ptr);
|
|
|
547 pragma Import (C, CPU_FREE, "__gnat_cpu_free");
|
|
|
548 -- Wrapper around the CPU_FREE C macro
|
|
|
549
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|
|
550 procedure CPU_ZERO (count : size_t; cpuset : cpu_set_t_ptr);
|
|
|
551 pragma Import (C, CPU_ZERO, "__gnat_cpu_zero");
|
|
|
552 -- Wrapper around the CPU_ZERO_S C macro
|
|
|
553
|
|
|
554 procedure CPU_SET (cpu : int; count : size_t; cpuset : cpu_set_t_ptr);
|
|
|
555 pragma Import (C, CPU_SET, "__gnat_cpu_set");
|
|
|
556 -- Wrapper around the CPU_SET_S C macro
|
|
|
557
|
|
|
558 function pthread_setaffinity_np
|
|
|
559 (thread : pthread_t;
|
|
|
560 cpusetsize : size_t;
|
|
|
561 cpuset : cpu_set_t_ptr) return int;
|
|
|
562 pragma Import (C, pthread_setaffinity_np, "pthread_setaffinity_np");
|
|
|
563 pragma Weak_External (pthread_setaffinity_np);
|
|
|
564 -- Use a weak symbol because this function may be available or not,
|
|
|
565 -- depending on the version of the system.
|
|
|
566
|
|
|
567 function pthread_attr_setaffinity_np
|
|
|
568 (attr : access pthread_attr_t;
|
|
|
569 cpusetsize : size_t;
|
|
|
570 cpuset : cpu_set_t_ptr) return int;
|
|
|
571 pragma Import (C, pthread_attr_setaffinity_np,
|
|
|
572 "pthread_attr_setaffinity_np");
|
|
|
573 pragma Weak_External (pthread_attr_setaffinity_np);
|
|
|
574 -- Use a weak symbol because this function may be available or not,
|
|
|
575 -- depending on the version of the system.
|
|
|
576
|
|
|
577 private
|
|
|
578
|
|
|
579 type sigset_t is new Interfaces.C.unsigned_long;
|
|
|
580 pragma Convention (C, sigset_t);
|
|
|
581 for sigset_t'Alignment use Interfaces.C.unsigned_long'Alignment;
|
|
|
582
|
|
|
583 pragma Warnings (Off);
|
|
|
584 for struct_sigaction use record
|
|
|
585 sa_handler at Linux.sa_handler_pos range 0 .. Standard'Address_Size - 1;
|
|
|
586 sa_mask at Linux.sa_mask_pos range 0 .. sigset_t'Size - 1;
|
|
|
587 sa_flags at Linux.sa_flags_pos
|
|
|
588 range 0 .. Interfaces.C.unsigned_long'Size - 1;
|
|
|
589 end record;
|
|
|
590 -- We intentionally leave sa_restorer unspecified and let the compiler
|
|
|
591 -- append it after the last field, so disable corresponding warning.
|
|
|
592 pragma Warnings (On);
|
|
|
593
|
|
|
594 type pid_t is new int;
|
|
|
595
|
|
|
596 type time_t is new long;
|
|
|
597
|
|
|
598 type timespec is record
|
|
|
599 tv_sec : time_t;
|
|
|
600 tv_nsec : long;
|
|
|
601 end record;
|
|
|
602 pragma Convention (C, timespec);
|
|
|
603
|
|
|
604 type unsigned_long_long_t is mod 2 ** 64;
|
|
|
605 -- Local type only used to get the alignment of this type below
|
|
|
606
|
|
|
607 subtype char_array is Interfaces.C.char_array;
|
|
|
608
|
|
|
609 type pthread_attr_t is record
|
|
|
610 Data : char_array (1 .. OS_Constants.PTHREAD_ATTR_SIZE);
|
|
|
611 end record;
|
|
|
612 pragma Convention (C, pthread_attr_t);
|
|
|
613 for pthread_attr_t'Alignment use Interfaces.C.unsigned_long'Alignment;
|
|
|
614
|
|
|
615 type pthread_condattr_t is record
|
|
|
616 Data : char_array (1 .. OS_Constants.PTHREAD_CONDATTR_SIZE);
|
|
|
617 end record;
|
|
|
618 pragma Convention (C, pthread_condattr_t);
|
|
|
619 for pthread_condattr_t'Alignment use Interfaces.C.int'Alignment;
|
|
|
620
|
|
|
621 type pthread_mutexattr_t is record
|
|
|
622 Data : char_array (1 .. OS_Constants.PTHREAD_MUTEXATTR_SIZE);
|
|
|
623 end record;
|
|
|
624 pragma Convention (C, pthread_mutexattr_t);
|
|
|
625 for pthread_mutexattr_t'Alignment use Interfaces.C.int'Alignment;
|
|
|
626
|
|
|
627 type pthread_mutex_t is record
|
|
|
628 Data : char_array (1 .. OS_Constants.PTHREAD_MUTEX_SIZE);
|
|
|
629 end record;
|
|
|
630 pragma Convention (C, pthread_mutex_t);
|
|
|
631 for pthread_mutex_t'Alignment use Interfaces.C.unsigned_long'Alignment;
|
|
|
632
|
|
|
633 type pthread_cond_t is record
|
|
|
634 Data : char_array (1 .. OS_Constants.PTHREAD_COND_SIZE);
|
|
|
635 end record;
|
|
|
636 pragma Convention (C, pthread_cond_t);
|
|
|
637 for pthread_cond_t'Alignment use unsigned_long_long_t'Alignment;
|
|
|
638
|
|
|
639 type pthread_key_t is new unsigned;
|
|
|
640
|
|
|
641 end System.OS_Interface;
|
